I have used the trimmer only a few times to trim my facial hair. And it has been charged only once because it can be used many times on a single charge. Now I keep my beard long so I don't use it. It is in very good condition. You can trim both beard and hair. Three clips are provided in the box to shorten or lengthen the beard or hair. The sizes of the clips are 1.5 mm, 3.5 mm, 4.5 mm. Also, if someone wants a clean shave or zero size, they can do it. The charging backup is very good. It stays charged for almost 8 hours on a single charge.